Gearing for washing-machines.



PATENTED DEC. 17, 1907.

L w MAMMEN I GEARING FOR WASHING MACHINES.

APPLICATION FILED APR. 3.1907.

[NVEN TOR Mm M. H W.

ditm yq UNITED srArEs PATENT orrron LAwREivcE W. MAMMEN, or cHIcAco, ILLINOIS.

GEARHTG Fort WASHING-MACHINES.

This invention rel ates to alternating rotary I gearing partieularly adapted for use in connection with washing machines.

The object of the invention is to produce a gearing of simple construction, 'without the use of a considerable number of gear wheels,

and having a minimum of friction, and consequently requiring less power for 1ts opera- 7 tion; and also in which energy will be stored up sufficient to cause the reverse or back stroke, avoiding, however, the danger of a high speed fly wheel.

' A further object of the invention is to provide an improved head for the attachment of. the operating lever.

In the accompanying drawings, Figure 1 is a lan view showing the gearing. Fig. 2 is a si e elevation thereof. Fig. 3 is an end elevation thereof.

Referring specifically to the drawings, 4 indicates an operating lever which may be placed in any one of a series of sockets .5 in a head 5 fixed to the outer end of a rock shaft 6, which is supported by bearing brackets 7 on the top of the washing machine .bOX. At the inner end the rock shaft has a segment 3i) 'gear 10 in mesh with a bevel pinion 11 on the top of the shaft of the washing machine rubher. A shield 8 covers the gearing.

The'head 5 has a'dependfng arm 5 which is connected by a spring pitman 9 ,to a crank 40 pin on the fly wheel 3 the shaft of which is carried in a bearing bracket 12 fixed to the frame of the machine.

-Any suitable kind of spring pitman may be used. I have shown the same formed of a pair of rods which lap each other, the lapped portions bein inclosed withina coiled spring one end of which is attached to the end of one rod and the other end of whichis attached to the end of the other rod. This allows the spring to expand or contract in accordance with the stroke.

Specification of Letters Patent. Application fi1d.Apri1 a. 1907. Serial No. 866,117-

Patented Dec. 17, 1907.

In operation, the lever may be placed in any one of the sockets, and is bolted therein. By this means the angle of the lever can be varled to suit the convenience of the operator. On vibration of the lever the shaft 6 1s rocked and the rubber is given an alter-' hating-motion. At the same time the -fly wheel is revolved, and pressure in one directioncauses the spring pitman either to extend ,60 or compress, the spring, thereby storing up energy which, after, the pitman passes the dead point, assists in reversing the stroke of the rubber and in returning the lever to'itsori inal position.

.am aware that alternating rotary gearing has heretofore been constructed for a similar use in which the rock shaft is geared in one way or the other to a high speed fly wheel, a

' plurality of gears being used. This is expensive and causes considerable friction, as well as danger from the gearing. ,By the use of the fly wheel and spring itman directly connected to the operating ever the same result with respect to storing power is obgreater speed than the rock shaft. The sprin pitman avoids all jarring, and works noise essl The head'with a series of sockets at di erent angles allows the operator to change the handle from one position to an? other and thereby avoid the fatigue incident to long continued operation in one position.

1. The combination 'of a driven shaft, arock' shaft cared thereto, an operatin lever connecterl to the rock shaft, a fly w eel, and a lon itudinally-yieldable pitman connecting the ever and fly wheel. 3,

.2. The combination of a driven shaftfa rock shaft geared at one end thereto, a head I -on the other end of the rock shaft, h'avinga projecting lever handle and also a projecting arm, a fly wheel, and a longitudinally-yield able itman connecting the arm and the fly '95 wheel In testimony whereof I affix my signature, in presence of two witnesses. LAWRENCE W.- MAMMEN.

Witnesses;

NELLIE FELTSKOG,

' H. G. BATCEELOR.

tained, and the fly wheel does not run at any 

